Auxiliary pump system for upsilon type engines



Feb. .23, w32. C. D. sALisEURY AUXILIARY PUMP SYSTEM FOR V-'TYPE ENGINES Filed My 26, 1930 (E1/VWL (l1/fry. ausm/Rf @QQ/@ww space for Patented Feb. 23, lg

uniri CARL I). SALISBURY, OII CLEVELAND, OHIO, ASSGNOR, BYJlEESNE THE WINTN ENGINE YCGRPGltATON' E' Fis ASSIGNMENTS, 'ro

` AUXILIAR?! PUMP SYSTEM FOR `l? TYPE .EN

Application filed May 26,

This invention relates to internal combustion engines, and the invention has to do with the location and drive of the engine pump auxiliaries. The invention is particularly applicable to engines of V type for marine service.

It will be appreciated that in the usual Inarine installation the hull into which the engine is fitted allows but very little clearance auxiliaries about the engine. Where the engine is of t type and consequently of greater transverse dimensions than the more usual in-line type, it isI not practical to locate auxiliaries at the side of the engine. The after end of the engine is usually also relatively inaccessible; but the forward end where it is customary to locate the controls is relatively accessible.

lllhere the engine is designed to operato on a fuel injection cycle, the number of pump auxiliaries is increased at least by the number of fuel pumps, and it is particularly important that all of the pumps, constituting as they do the hearts of their respective cir-- culating systems, be most accessible. Development in the engine art has greatly improved the reliability of engine operation as a whole and of the principal primary working parts, but the pumps from their nature must still usually have frequent attention.

It is the object of this invention to arrange all of the pumps at one end as at the forward end of the engine, in such relation that each will be fully accessible, and to arrange a drive for all of the pumps which shall be of such reliability that it may be from the opposite or after end of the engine. Y

The exact nature of this invention together withv further objects' and advantages thereof will be apparent from the following description taken in connection with the accompanying drawings, in which Fig. 1 is generally an elevation of such an engine from the forward end and therefore showing particularly the pump auxiliaries thereof, parts being broken away to show details of construction; Fig. 2 is a conventionalized plan view of the engine; Fig. 3 is a detail showing the driving engagement of the auxiliary crank shaft.

lVith reference now to the drawings, the

kthis end an auxiliary 17930. Serial No. 455,61?.

on the crank shaft; the cylindersbeing pro- Y vided with valves driven by valve gear actuated in timedA relation with the engine crank shaft through gear located in the housing 4; all as will be well understood by one familiar with the art.

' According to my invention l arrange transverselyacross the forward end of the enginelan auxiliary crank shaft 5 carrying a gear 6 by which the vshaft may be driven. To

tween the cylinder blocks 1, drivenat its after end by suitable driving connection within the gear housing forward end a pinion 8 meshing with the gear 6. Y

On either side of the auxiliary crankshaft 5, as th-ereabove andvtherebelow and thusdisposed'generally in a plane, are the auxiliary pumps for the engine. Each of these pumps is driven by one of the cranks of theV shaft 5 and several of the pumps may preferably be in tandem relation. rlhus foursingleacting oil pump cylinders 9 are shown, two for pressure and'two for scavenging, each having a piston 10and a connecting rod v11 bearing on the crank shaft 5 for the purpose. vBelow and aligned with the oil pumps are water pumps 12, double-acting, and the piston 13 of each having' connection with the piston 10 of its corresponding oil pump through a connecting rod 14; which arrangement will shaft 7 is arranged bec 4, and carryingat its .i

ter pumps are provided With automatic valves While the fuel pumpsare provided with valve gear including the parts 2l and taking motion from the pump plunger.

It Will be apparent from the yforegoing description that although the pump auxiliaries for :the engine include twelve pump units, all are driven from a single crank shaft, and all are located most advantageous- -ly for access. Preferably a. housing 22 is provided about the pumps,'suitable cover plates beingof course provided for the front end of the housing. v

What I claim is:

l. In an internalcombustion engine,an aux# iliary crank shaft positioned transversely of said engine at an end thereof and. arranged to driven thereby, and pump auxiliaries to the engine, driven by said crankshaft and-arranged thereabove and therebelow and including .pairs of pistons arranged `in tandem relation. e

2. In an internal combustionengineof V type, and having `a timed shaft arranged along and fbetween the'roWs of cylinders thereof, an auxiliary crank shaft arranged transversely of said engine at an end thereof and 'arranged to be driven by said timed y shaft, and pump auxiliaries to the engine driven by'said transverse crank shaft and arranged 'thereabove' and therebeloW.

B Inan internal combustion` engine of V type for marine service, an auxiliary shaft arranged along said engine lbetween the rows of cylinders thereof, an: auxiliary crankshaft arranged transversely of said engine at they forward end thereof and-arranged to be 'driven by said' auxiliary shaft, pump auxiliaries to the engine driven by said crankshaft and arranged .thereabovef'and therebelow andincluding pairs of pistons arranged 1n tandem relation, andv gear at the after end of saidengme vfor drivingfsaid Y,

auxiliary shaft from the engine vcrank shaft. In testimony Whereof I hereby .aiix my signature.

CARL D. SALISBURY. 

